一种抽能型电抗器的抽能绕组匝间保护及动模测试方案  

An Inter-turn Protection and Dynamic Simulation Test on Pumped Windings of Energy-extraction Reactor

作　　者：李卫良 杨洪涛 韩士杰 赵振喜 莫品豪[4] 行武 LI Weiliang;YANG Hongtao;HAN Shijie;ZHAO Zhenxi;MO Pinhao;XING Wu(State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China;NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Grid Jilin Electric Power Supply Company,Changchun 130021,China;NR Electric Co.,Ltd.,Nanjing 211102,China;Nanjing SAC Power Grid Automation Co.,Ltd.,Nanjing 211151,China)

机构地区：[1]智能电网保护和运行控制国家重点实验室,江苏省南京市211106 [2]南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市211106 [3]国网吉林省电力有限公司,吉林省长春市130021 [4]南京南瑞继保电气有限公司,江苏省南京市211102 [5]南京国电南自电网自动化有限公司,江苏省南京市211151

出　　处：《电力系统自动化》2019年第24期165-170,共6页Automation of Electric Power Systems

摘　　要：抽能型电抗器由于其结构不同于电抗器和变压器,抽能绕组匝间故障如何快速保护没有得到共识,且工程应用较少。文中基于三相抽能绕组三角形接法的特点配置环流过流作为动作元件,采用电抗器侧零序过压或零序过流作为闭锁元件,实现抽能绕组匝间故障的快速保护,并对抽能绕组匝间故障下的环流进行分析。通过量化测试验证了物理模型的有效性。同时还提出了抽能绕组匝间保护的动模测试方案并进行测试,测试结果验证了保护逻辑的合理性。Because the structure of energy-extraction reactor is different from that of reactor and transformer, there is no consensus on how to quickly protect the inter-turn fault of the pumped windings, and its engineering applications are rare. According to the characteristic analysis of triangular connection of three-phase pumped windings, the circulating overcurrent is set as the action element, the zero-sequence overvoltage or the zero-sequence overcurrent on reactor side acts as the locking element, which can realize the fast protection of inter-turn fault in pumped windings, and the circulating overcurrent of the fault is analyzed. Finally, the effectiveness of physical model is verified by quantitative testing, a dynamic simulation testing scheme for inter-turn protection of pumped windings is proposed and the test results verify the rationality of the protection logic.

关 键 词：抽能型电抗器 动模试验 匝间保护 不平衡电流 

分 类 号：TM4[电气工程—电器]